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In this paper a conception of the model for learning scenario determination is presented. We define the learning scenario as a sequence of the hypermedia pages, representing particular knowledge units, and tests related to them. The scenario determination is a dynamic process that begins when a new student takes up a course. The opening scenario for this student is chosen as the consensus of the final scenarios of the students, who have already finished this course, and who belong to a class of the learners similar to the new one. We have elaborated the consensus‐based procedure for the scenario determination. Since this procedure operates on a set of similar learners, we have developed the conceptions of learner’s profile and students’ classification. The learner’s profile is proposed to include the attributes describing students’ personal data (as name, birthday etc.), their cognitive and learning styles as well as their usage data (represented by the learning scenarios). The students’ classification is based on a set of the basic attributes that seem to influence the learning effects. Their significance is verified during the learning process. We have also elaborated the procedure of reducing undistinguishable values of the attribute and removing useless attributes from the set of basic attributes. A learning procedure proposed, describes generally the situations when the scenario is modified, and the methods used for its modification.

Personal acknowledgements are commonplace in the scholarly communication process. The scale and significance of the phenomenon vary from field to field, and from journal to journal. Variation in practice is revealed in a twenty‐year analysis of acknowledgements in four of the top‐ranked information/library science journals (1971–1990). A small number of individuals are highly acknowledged; a majority are mentioned infrequently, if ever. The concentration is similar to that found in citation analyses of research productivity. There is a positive rank order correlation between frequency of acknowledgement and citation frequency. The implications for both institutional and individual evaluation are discussed.

There is a huge amount of information and data stored in publicly available online databases that consist of large text files accessed by Boolean search techniques. It is widely held that less use is made of these databases than could or should be the case, and that one reason for this is that potential users find it difficult to identify which databases to search, to use the various command languages of the hosts and to construct the Boolean search statements required. This reasoning has stimulated a considerable amount of exploration and development work on the construction of search interfaces, to aid the inexperienced user to gain effective access to these databases. The aim of our paper is to review aspects of the design of such interfaces: to indicate the requirements that must be met if maximum aid is to be offered to the inexperienced searcher; to spell out the knowledge that must be incorporated in an interface if such aid is to be given; to describe some of the solutions that have been implemented in experimental and operational interfaces; and to discuss some of the problems encountered. The paper closes with an extensive bibliography of references relevant to online search aids, going well beyond the items explicitly mentioned in the text. An index to software appears after the bibliography at the end of the paper.

This study aims to evaluate the immunomodulatory effect of traditional drink of black cincau-based wedang uwuh (WUB) on alloxan-induced diabetic rats.

WUB consists of dried herbs such as black cincau leaves (Mesona palustris BL), red ginger (Zingiber officinale Rosc), cloves (Syzgium aromaticum), sappan wood (Caesalpinia sappan Lin) and soursop leaves (Annona muricata). In this study, the rats were divided into five groups: normal control, diabetic control and three groups of WUB (WUB 13.5 mL/kg and WUB 27 mL/kg) or wedang uwuh commercial (WUC) treated diabetic groups. WUB or WUC was administered by gavage for three days after rats were confirmed diabetic induced by alloxan; these injections were continued for 28 days. At the end of the experiment, the spleen of rats was analyzed using flow cytometry. Data were analyzed by ANOVA followed by Tukey test using Minitab version 16.0.

This study showed that WUB significantly inhibited the expression of pro-inflammatory cytokines (interferon-Y [IFN-ɣ] and tumor necrosis factor-α [TNF-a]) and anti-inflammatory cytokines (interleukin 10 [IL-10] and transforming growth factor-β [TGF-ß]), and achieved a balance between pro-inflammatory and anti-inflammatory cytokines that were not significantly different from normal controls. WUB 27 was able to regulate the production of relative average cytokines IFN-ɣ (7.6 ± 3.5; p = 0.010), TNF-a (8.7 ± 2.4; p = 0.018), IL-10 (6.3 ± 2.4; p = 0.001) and TGF-ß (7.4 ± 2.1; p = 0.004) that was significantly different from diabetic control. This study’s results validate that the use of WUB can result in immunomodulatory activity in diabetic rats.

To the best of the authors’ knowledge, this is the first study on the immunomodulatory effect of WUB which is developed based on WUC; WUB has been used by Indonesian people as a functional beverage which acts as an immune booster and body warmer.

The aim of the paper is to identify the causal effect of the COVID-19 induced crisis on students' decisions about their educational plans. The authors hypothesise that students adjusted their decisions by delaying graduation, dropping out or change the field of education because of increased uncertainty about future employment and monetary returns.

The empirical approach is based on a survey done during the first wave of COVID-19 in Slovenia. The probability of dropping out, prolonging or stop-out is designed by applying probit and probit with insturmental variables empirical model.

Primary orientation towards work increases the probability of dropping out and financial constraints increase the probability of prolonging studies. The same holds after accounting for endogeneity. However, the authors do not find that poor job expectations due to COVID-19 affect students' decisions to prolong, drop-out or stop-out. The authors also find that the primary orientation toward work or study explains the differences in the probability of each outcome that is not influenced by enrolment in a particular field of study.

The results cannot be read as an objective prediction of the impact of the COVID-19 crisis on college failures. However, the study provides insight into how students' expectations change their intentions to prolong, drop-out, or stop-out during periods of high uncertainty. The extent, to which measured intentions are realised, however, is uncertain.

Understanding the response diversity and motives behind students' study decisions represents extremely valuable insights for economic policy. Mapped apprehensions, augmented by heterogeneity in personal and financial characteristics, are relevant for policymakers. In terms of future research, it would be interesting to analyse what changes occurred over a five-year period, specifically which field of study was most affected by students' adjusted plans due to the pandemic.

Students have always been a special group in the labour market. After the initial shock of closing activities, studying online and the drastic decrease in student work due to COVID-19, the decision was made in spring 2020 to continue on the chosen path or not. This paper provides insight into the changing decision students made about their educational plans.

This paper is one of the first to highlight the implications of COVID-19 for the adaptation of student plans in the transition from school-to work in Europe. It departs from the classical literature of college failures, as specific macroeconomic conditions influence students to reconsider their educational decisions. Moreover, the paper also contributes to the rapidly growing literature on the impact of the COVID-19 pandemic on household-level labour market outcomes, particularly with respect to job search and labour supply decisions in general.